Instana is looking for a Senior Systems Engineer to work on our Distributed PHP Tracer.

Your day to day work in this role requires solid knowledge of C. Knowledge of PHP, the PHP Engine and APM is recommended, but can be acquired on the job. You will be working with PHP core developers to guide you. This is a challenging role with good opportunity for personal growth.

Technical responsibilities in this role include

  • instrument new libraries and frameworks for our Distributed PHP Tracer (written as a C extension to PHP)
  • maintain or improve the performance of our Distributed PHP Tracer
  • extend the capabilities of our own PHP Trace SDK embedded in our Distributed PHP Tracer
  • maintain our PHP OpenTracing SDK (implemented in PHP)
  • resolve defect tickets regarding any of the above
  • own the build system
  • contribute your own ideas to expand our PHP monitoring capabilities


  • Proven solid professional C experience
  • PHP internals knowledge (recommended)
  • Solid hands-on experience using PHP (recommended)
  • Practical knowledge about common debugging tools like GDB and valgrind
  • Practical knowledge about profiling and performance
  • Practical knowledge about Docker and Docker Setups
  • Good code writing discipline and an eye for code efficiency
  • Strong analytical and problem solving thinking
  • Ability to self organize
  • Fluent in written and spoken English
  • European Citizen (EU Work permit)

    What we offer:

    • competitive salary
    • stock options
    • paid wellness & fitness
    • optional company pension scheme
    • optional job bike
    • flexible working hours
    • occasional remote work
    • free choice of workstation
    • free choice of smartphone
    • free drinks and ice-cream
    • regular offsite events
    • knowledgeable and friendly colleagues
    • a large degree of freedom and self-organization

    About Instana:
    As the leading provider of Application Performance Management solutions for containerized microservice applications, Instana applies automation and artificial intelligence to deliver the visibility needed to effectively manage the performance of today’s dynamic applications across the DevOps lifecycle. Founded by Application Monitoring veterans, Instana provides true AI-powered APM to help organizations deliver high performance applications today and in the future. Visit us at to learn more.